Display screen or portion thereof with icon



FIGURE is a front view of a display screen or portion thereof with icon showing our new design.

The dash-dash broken lines illustrate the display screen or portion thereof and forms no part of the claimed design. The uneven dash-dash line illustrates a portion of the graphical user interface and forms no part of the claimed design. The dot-dash broken lines form no part of the claimed design. 

CLAIM We claim the ornamental design for a display screen or portion thereof with icon, as shown and described. 